Data Observatory

Statistical patterns gathered from fitting records worldwide — body proportions, ethnic differences, size distribution and bike-model coverage.

Global Distribution

LowHigh Bubble size ∝ records

Patterns in the Data

Height distribution

Frame size distribution

Ethnic-group body-ratio ladder

Inseam-to-height ratio by ethnic group, low to high; the dashed line is the global baseline.

Frame spread at the same height

Frame map (Stack–Reach)

Each dot is one size, coloured by category: bottom-left = more relaxed (short reach, low stack), top-right = more race-ready.

Wheels: price–weight–depth

Bubble size = rim depth, colour = category; prices converted to USD at a fixed rate. Top-left = light and cheap.

On the shelf vs recommended to riders

Two rulers — top tube and frame size: shelf stock (teal) overlaid with what riders were fitted to (coral) on the same scale.

Bike Frame Library

Frame geometry collected from official sites — cm / ° units, newest first.｜ We also keep older model years of many brands in our big-data corpus — fitting results match and recommend those too. Questions? Email: friends@fittinglab.ai

KOGA BEACHRACER PRO Gravel

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
50	55.3	38.5	54	—	9	70.5	74.5
54	56.4	39.8	55.6	—	9.5	71	74.5
56	58.4	40.8	57	—	11	71	74.5
58	60.3	40.6	57.9	—	13	71	74
60	62.1	41.3	59.1	—	15	71	74

KOGA BEACHRACER Gravel

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
50	55.3	38.5	54	—	9	70.5	74.5
54	56.4	39.8	55.6	—	9.5	71	74.5
56	58.4	40.8	57	—	11	71	74.5
58	60.3	40.6	57.9	—	13	71	74
60	62.1	41.3	59.1	—	15	71	74

KOGA COLMARO SPORTS Gravel

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	54.7	37.6	54.4	—	12	70.5	73
M	57.7	37.8	56.1	—	15	71	72.5
L	60.5	38.8	57.9	—	18	71	72.5
XL	63.6	38.9	59.6	—	21	71.5	72

KOGA COLMARO EXTREME ANNIVERSARY EDITION Gravel

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	56.6	38	—	47	10	70	73.5
S	57.7	39	—	49	11	71	73.5
M	58.7	40	—	52	12	71	73.5
L	61	40.5	—	55	14	72	73.5
XL	62.9	41.5	—	58	16	72	73.5

KOGA COLMARO EXTREME Gravel

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	56.6	38	—	47	10	70	73.5
S	57.7	39	—	49	11	71	73.5
M	58.7	40	—	52	12	71	73.5
L	61	40.5	—	55	14	72	73.5
XL	62.9	41.5	—	58	16	72	73.5

KOGA COLMARO ALLROAD Gravel

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	54.6	38.4	—	47	12	70	73.5
S	55.9	38.8	—	49	13	71	73.5
M	58	39.1	—	52	15	71.5	73.5
L	59.9	40	—	55	17	71.5	73.5
XL	62	40.7	—	58	19	72	73.5

KOGA ROQA PRIME Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	54.1	37.4	52.5	46	12	70	74.5
S	56.4	37.8	54	49	14	71	74
M	58.9	38.1	55.5	51	16.5	71.5	73.5
L	60.8	39	57	53	18.5	71.5	73.5
XL	62.9	39.7	59	56	20.5	71.5	73

KOGA ROQA PRESTIGE Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	54.1	37.4	52.5	46	12	70	74.5
S	56.4	37.8	54	49	14	71	74
M	58.9	38.1	55.5	51	16.5	71.5	73.5
L	60.8	39	57	53	18.5	71.5	73.5
XL	62.9	39.7	59	56	20.5	71.5	73

KOGA ROQA PREMIUM Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	54.1	37.4	52.5	46	12	70	74.5
S	56.4	37.8	54	49	14	71	74
M	58.9	38.1	55.5	51	16.5	71.5	73.5
L	60.8	39	57	53	18.5	71.5	73.5
XL	62.9	39.7	59	56	20.5	71.5	73

KOGA ROQA ALLROAD Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	54.1	37.4	52.5	46	12	70	74.5
S	56.4	37.8	54	49	14	71	74
M	58.9	38.1	55.5	51	16.5	71.5	73.5
L	60.8	39	57	53	18.5	71.5	73.5
XL	62.9	39.7	59	56	20.5	71.5	73

KOGA SENKO Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	50.4	40.8	53.8	—	11	74	75.5
M	52.3	42.5	56	—	13	74	75.5
L	56.2	45.2	59.2	—	17	74	76

KOGA KIMERA PRO Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
54	54	39.6	55.1	—	14	72.5	74
56	55.6	40.1	57.1	—	15.5	73	73
58	56.6	40.2	57.4	—	16.5	73	73
60	58.5	41.1	59	—	18.5	73	73

KOGA KIMERA PRIME LIMITED Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
54	54	39.6	55.1	—	14	72.5	74
56	55.6	40.1	57.1	—	15.5	73	73
58	56.6	40.2	57.4	—	16.5	73	73
60	58.5	41.1	59	—	18.5	73	73

KOGA KIMERA PRIME Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
50	52.4	38.6	53.6	—	12.5	72	74
54	54	39.6	55.1	—	14	72.5	74
56	55.6	40.1	57.1	—	15.5	73	73
58	56.6	40.2	57.4	—	16.5	73	73
60	58.5	41.1	59	—	18.5	73	73
63	61.3	41.7	60.5	—	21.5	73	73

KOGA KIMERA PREMIUM BEAT Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
54	54	39.6	55.1	—	14	72.5	74
56	55.6	40.1	57.1	—	15.5	73	73
58	56.6	40.2	57.4	—	16.5	73	73
60	58.5	41.1	59	—	18.5	73	73
63	61.3	41.7	60.5	—	21.5	73	73

KOGA KIMERA PREMIUM Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
50	52.4	38.6	53.6	—	12.5	72	74
54	54	39.6	55.1	—	14	72.5	74
56	55.6	40.1	57.1	—	15.5	73	73
58	56.6	40.2	57.4	—	16.5	73	73
60	58.5	41.1	59	—	18.5	73	73
63	61.3	41.7	60.5	—	21.5	73	73

KOGA KINSEI PRO Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	54.8	39	54.7	51	15	73	74
M	56.7	40	56.8	53	17	73	73.5
L	59	41	58.5	55	19	74	73.5
XL	60.9	42	60	58	21	74	73.5

KOGA KINSEI PRIME Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	52.5	38	53.1	48	13	72	74
S	54.8	39	54.7	51	15	73	74
M	56.7	40	56.8	53	17	73	73.5
L	59	41	58.5	55	19	74	73.5
XL	60.9	42	60	58	21	74	73.5

KOGA KINSEI PRESTIGE Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	52.5	38	53.1	48	13	72	74
S	54.8	39	54.7	51	15	73	74
M	56.7	40	56.8	53	17	73	73.5
L	59	41	58.5	55	19	74	73.5
XL	60.9	42	60	58	21	74	73.5

KOGA KINSEI PREMIUM Road

Source：www.koga.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	52.5	38	53.1	48	13	72	74
S	54.8	39	54.7	51	15	73	74
M	56.7	40	56.8	53	17	73	73.5
L	59	41	58.5	55	19	74	73.5
XL	60.9	42	60	58	21	74	73.5

PARDUS KAGO Gravel

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	50.7	40	53.3	42	27	68	73
ML	53.5	—	59.5	48	30	68	73

PARDUS EXPLORE URBAN SPORT Gravel

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	56.1	36.5	52	46	15.5	69	75
M	58.9	37.6	52	46	15.5	69	74.5
L	61.9	38.8	56.6	50	24.5	69.5	74

PARDUS EXPLORE SPORT Gravel

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	53.6	35.6	49.9	45	9.5	70	75
S	55.4	36.6	51.5	45	11.5	70	75
M	56.8	37.2	53	45	12.5	70.5	74.5
L	58.4	37.8	54.6	45	14	71	74

PARDUS EXPLORE 2 Gravel

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	52.1	36	50.5	39	10	70	73.5
S	54.3	37.5	52.1	43	12.3	70.5	73.5
M	56.6	38.6	54.2	48	14.2	71	73
L	58.4	39.5	56	52	17.4	71	73

PARDUS URAGANO F Gravel

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	52.3	35.6	49.5	43.5	9.5	70	75.2
S	53.7	35.6	50.5	45.2	11.05	70	74.3
M	56.1	36.5	52.6	48.2	13.55	70	74
L	58.4	37.3	54.6	50.2	15.55	71	73.5

PARDUS URAGANO EVO Gravel

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	53.5	35.6	49.9	48	11.5	70	75
S	55.4	36.6	52	50	13.5	70	74.5
M	56.7	37.2	53.4	52	14.9	70.5	74
L	58.2	37.8	55	54	15.9	71	73.5
XL	60	38.6	56.4	56	17.8	71	73.5

PARDUS ROBIN KIDS AL Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
均码	46.3	31.1	43.2	34	13	71	73.5

PARDUS ROBIN KIDS SPORT Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
24寸轮径	46.3	31.1	44.9	34	13	71	73.5

PARDUS ROBIN KIDS Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
Free Size	42.48	32.42	45	34	9	71	73.5

PARDUS GOMERA EVO Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	46.5	37.6	47.5	—	5.6	72	78
S	47.6	39.9	50.1	—	6.8	72	78
M	48.6	41.8	52.1	—	7.8	72	78
L	49.6	43.4	54	—	8.9	72	78
XL	50.6	44.4	55.2	—	9.9	72	78

PARDUS SUPER SPORT Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	50	35.2	49.1	43	9.71	70.5	74.5
XS	51.4	36.1	50.9	45	11.25	70.5	74
S	53.9	37.1	52.5	48.5	13.75	71.5	74
M	55.8	38	54.5	51	15.5	72.5	73.5
L	57.8	38.8	56.5	52.5	17.28	72.5	73.3
XL	59.7	40	57.9	54.5	19.22	72.8	73.3

PARDUS SUPG2 SPORT Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	51.56	35.15	49.45	43	11.33	69.5	74.5
XS	53.76	36.53	51.95	42	12.72	70.5	74
S	55.72	37.62	53.6	45.5	14.25	72.5	74
M	57.56	38.6	55.6	48.6	15.76	72.5	73.5
L	59.05	39.5	57	51	17.64	72.5	73.5
XL	62.05	40.8	59.18	64.5	20.78	72.5	73.5

PARDUS SUPER RS Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	51	35.2	48.9	41	10.4	70.7	75
XS	53	35.7	50.3	44.5	12.1	71.8	74.6
S	54.3	36.2	51.2	48.3	13.4	72.1	74.6
M	55.8	36.8	52.6	49.6	14.9	72.6	74.2
L	57.8	37.4	54.3	51.5	16.9	72.9	73.7
XL	59.3	38	55.8	52.8	18.5	72.9	73.3

PARDUS SUPER EVO Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	51	35.2	48.87	46.1	10.43	70.7	75
XS	53	35.7	50.3	47.85	12.13	71.8	74.6
S	54.3	36.2	51.16	49	13.39	72.1	74.6
M	55.8	36.8	52.59	50.3	14.93	72.6	74.2
L	57.8	37.4	54.3	52.15	16.91	72.9	73.7
XL	59.3	38	55.79	53.5	18.48	72.9	73.3

PARDUS SPARK TOURIST Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	54.5	36.5	52.1	40	9	71	74
M	55.5	37.5	53.4	46.5	10	71	74
L	56.9	38.5	54.8	48.7	11.5	71	74

PARDUS SPARK SPORT Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	50.5	36	49.5	45.2	10.2	71	75
XS	52.2	36.9	51.4	47.1	11.8	71.5	74.5
S	53.8	37.7	53.1	49.4	13.4	72	74
M	55	38.4	54.2	49.9	14.4	72.5	74
L	56.8	39.4	56.2	51.2	16.4	73	73.5
XL	58.5	40.3	58.2	53.1	18	73.5	73

PARDUS SPARK RS Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	49.7	36.5	49.35	45.38	9	72	75.5
XS	50.7	37.2	50.79	46.37	10.05	72	75
S	51.7	37.9	51.95	47.36	10.98	72.5	74.8
M	52.7	38.3	53.02	48.4	11.85	73	74.4
L	54	38.7	54.18	49.74	13.25	73.5	74
XL	56.5	39.8	56.21	52.2	15.86	73.5	73.8

PARDUS SPARK EVO Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	49.7	36.5	49.4	45.4	9	72	75.5
XS	50.7	37.2	50.8	46.4	10.05	72	75
S	51.7	37.9	52	47.4	10.98	72.5	74.8
M	52.7	38.3	53	48.4	11.85	73	74.4
L	54	38.7	54.2	49.7	13.25	73.5	74
XL	56.5	39.8	56.2	52.2	15.86	73.5	73.8

PARDUS SPKG4 EVO Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	48.8	36	48.62	43.85	6.69	71	73.5
XS	50.5	37	50.53	45.5	8.18	71.5	75
S	51.8	37.8	52.65	46.78	9.47	72	74
M	53.4	38.5	53.88	48.23	10.91	72.5	74
L	54.8	39.5	55.73	49.6	12.39	73	73.5
XL	56.8	40.5	57.32	51.63	14.21	73.5	73.5

PARDUS ROBG3 AL Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	50.9	35.8	49.5	43.2	10.8	71	65
XS	52.5	36.8	51.4	45.3	12.3	71.5	64.5
S	54	37.8	53.3	47	13.4	72.5	64.1
M	55.4	38.7	54.6	49	15	72.5	64.2
L	57	39.7	56.6	51	16.4	73	63.7
XL	59.5	41	59.2	53.5	19	73	62.8

PARDUS ROBIN SPORT Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	51.1	35.8	49.5	44	11.2	71	75
XS	52.2	36.6	51.1	45.4	12.2	71.5	74.5
S	53.5	37.5	52.8	46.9	13.2	72.5	74
M	55	38.5	54.3	48.5	14.7	72.5	74
L	57	39.7	56.6	50.5	16.7	73	73.5
XL	59.5	41	59.2	53.5	19.3	73	73

PARDUS ROBIN RS Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	50.5	36.8	50.3	47.1	10	71	75
S	52.7	37.8	52.4	48.6	12	72.5	74.5
M	54.8	38.4	54	50.3	14	73	74
L	56.5	38.8	55.5	52.2	16	73	73.5
XL	58.4	39.7	57.6	53.3	18	73	73

PARDUS ROBIN EVO Road

Source：parduscycle.com Collected 2026-09-30

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	47.5	35.8	48.1	43.2	7.1	70.5	75.5
XS	49.5	37.2	50.4	45.3	9.1	71	75
S	51.7	38.1	52.5	46.4	11	72.5	74.5
M	53.8	38.7	54.1	48.7	13	73	74
L	55.4	39.1	55.5	50.2	14.7	73	73.5
XL	57.4	40	57.6	52.1	16.7	73	73

SCOTT Speedster Gravel Gravel

Source：www.scott-sports.com.tw Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS/47	51.9	37.4	51.23	47	9.3	70	75
XS/49	52.84	37.8	52.3	49	10.3	70	74.5
S/52	54.72	38.2	53.65	52	12.3	70	74
M/54	57	38.7	55.65	54	14.3	71	73
L/56	58.89	39.2	57.12	56	16.3	71	72.5
XL/58	60.78	39.6	58.12	58	18.3	71	72.5

SCOTT Addict Gravel Gravel

Source：www.scott-sports.com.tw Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS/47	52	38.3	52.2	41.5	8.7	70	75
XS/49	53.2	39	53.2	44	9.9	70	75
S/52	55.5	39.4	54.7	46	12.4	70	74.5
M/54	57.5	39.8	56.2	49.5	14.7	70	74
L/56	59.6	40.1	57.1	51.5	16.9	70	74
XL/58	61.4	40.7	58.3	53.5	18.9	70	74

SCOTT Foil RC Road

Source：www.scott-sports.com.tw Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS/47	50.5	38	52	45.18	10.3	70.5	74.5
XS/49	51.1	38.8	53	48.19	10.8	71	74.5
S/52	52.7	38.9	54	50.24	12.1	72	74
M/54	54.8	38.9	55	52.26	14.1	72.5	73.6
L/56	56.8	39.45	56.5	54.24	16.1	73	73.3
XL/58	58.9	40	58	55.98	18.1	73.3	73

SCOTT Addict Road

Source：www.scott-sports.com.tw Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS/47	52.2	37.2	51.1	43.5	10.4	71.3	75
XS/49	53.4	37.8	52.1	45.5	11.5	71.8	75
S/52	55.7	38.2	53.6	47.5	13.9	72	74.5
M/54	57.8	38.6	55.1	49.5	16.1	72.2	74
L/56	59.9	38.9	56.6	51.5	18.2	72.5	73.5
XL/58	61.9	39.4	58.2	53.5	20.1	73	73.1

SCOTT Addict RC Road

Source：www.scott-sports.com.tw Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS/47	50.13	37.94	51.9	42.25	9	71.3	74.5
XS/49	51.25	38.63	52.8	44.25	10	71.8	74.5
S/52	52.55	39.16	54.2	46.21	11.3	72.3	74
M/54	54.33	39.52	55.5	48.2	13	72.8	73.6
L/56	56.45	40.26	57.2	50.22	15	73.4	73.3
XL/58	58.43	40.61	58.6	52.23	17	73.6	72.8

CINELLI Zydeco Washboard Sport Gravel

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	54.4	37.5	52.6	49	12.5	71	74.5
S	55.8	38	53.5	51	14	71	74.5
M	57.7	38.7	55.2	54	16	71	74
L	59.6	39.6	57.3	56	18	71	73.5
XL	61.5	40.5	58.7	59	20	71	73.5

CINELLI Supercorsa Road

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
53	53.3	38.7	54	53	11.8	73	74
54	54.1	38.3	54.5	54	12.7	73	73.5
55	55	38.7	55	55	13.7	73	73.5
56	56	39.4	56	56	14.7	73	73.5
57	57	39.6	56.5	57	15.7	73	73.5
58	57.8	39.3	57	58	16.6	73	73

CINELLI Hobootleg Gravel

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	54.9	36.2	52	49	10.5	70	74
M	57.2	37	54	53	12.5	71	73.5
L	59.3	37.9	56	56	14.5	71.5	73
XL	61.2	38.7	58	59	16.5	71.5	72.5
XXL	64.3	39.1	60	61	19.5	72	72

CINELLI Hobootleg Easy Travel Gravel

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	53.1	36	52	48	8	70	73
S	56.3	37.3	54.5	52	11	71	73
M	58.7	38.5	56.4	55	13.5	71	73
L	61.2	39.8	59.1	58	16	71.5	72.5
XL	63.8	41	61.1	60	18.5	72	72.5

CINELLI Hobootleg Geo Gravel

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	62	36.2	54	40	13.3	68	74
M	64.4	37.9	57	46	15.3	69	73.5
L	66.3	39.7	60	51	17.3	69	73
XL	68.2	40.5	62	55	19.3	69	72.5

CINELLI Nemo Tig Gravel Gravel

Source：usa.cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS/48	56.8	37.4	52.8	48	11.5	70	74.5
S/52	56.9	39.1	54.8	52	11.5	70	74.5
M/54	57.8	39.9	56.5	54	12	71	74
L/56	59.1	41	58.5	56	13	72	73.5
XL/59	60.3	41.6	60	59	14	72.5	73
XXL/61	62.2	42.5	61.5	61	16	72.5	73

CINELLI Zydeco Washboard Allday Gravel

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS/49	55.1	36.2	52.5	49	12.5	70	73.3
S/51	56.6	36.8	53.4	51	14	70	73.3
M/54	58.5	37.5	55.2	54	16	70	72.8
L/56	60.3	38.4	57.3	56	18	70	72.3
XL/59	62.3	39.3	58.7	59	20	70	72.3

CINELLI Zydeco Gravel

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	51	37.1	51	49	10	70.5	74.5
S	53	37.5	52	51	12	71	74.5
M	55.1	38	53.9	54	14	71.5	74
L	57.2	39	56	56	16	72	73.5
XL	59.2	39.9	58	59	18	72.5	73

CINELLI King Zydeco Gravel

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S	51.9	37.1	53	48	10	70	73
M	55	38	55	51	13	71.5	73
L	57.6	38.9	57	53	15	72.5	72.5
XL	59.9	40	59	55	17.5	72.5	72.5

CINELLI King Zydeco 2 Gravel

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS/45	53.1	36.2	52	45.1	11	70.5	74
S/46	54.9	37.7	54	46.1	12.5	71	73.5
M/47	56.3	38.8	56	46.9	14	71.5	73
L/48	57.9	39.7	58	47.9	15.5	72	72.5
XL/50	60	40.8	60	49.7	17.5	72.5	72.5

CINELLI Speciale Gravel Gravel

Source：usa.cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	56.3	38.2	53.8	45	11.7	70	74.5
S	56.3	39.4	55	49	11.7	70	74.5
M	57.7	40.2	56.7	51	12.8	70	74
L	59	41.1	58.6	53	14.6	70	73.5
XL	60.2	41.6	60	55	15.8	70	73

CINELLI Nemo Tig Road Rim Road

Source：usa.cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	51	36.9	51	48	11	71	74.5
S	52	37.1	52	51	12	71.5	74
M	54.7	37.3	53.5	54	14.5	72.5	73.5
L	56.4	38.3	55	56	16	73	73.5
XL	58.7	39.5	57.5	59	18.5	73	73
XXL	64.3	39.7	59	61	21	73.5	72.5

CINELLI Nemo Tig Road Road

Source：usa.cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS/48	50.9	36.9	51	48	11	71	74.5
S/51	53	37.3	52.5	51	13	71.5	74
M/54	54.8	38.3	54.5	54	14.5	72.5	73.5
L/56	56.8	38.7	55.5	56	16.5	73	73.5
XL/59	58.8	39.5	57.5	59	18.5	73	73
XXL/61	61.3	40.2	59	61	21	73.5	73

CINELLI XCR Rim Road

Source：usa.cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	49.1	37.8	51.5	45	9.8	71.5	74.5
S	49.8	38.2	52.5	48	10.4	72	74
M	51.6	39	54.5	50	12.1	73	73.5
L	53.5	39.6	56	53	13.9	73.5	73
XL	56	40.3	58	56	17.2	73.5	72.5

CINELLI Speciale Corsa XCR Road

Source：usa.cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS/47	50.9	36.9	51	47	11	71	74.5
S/49.5	53	37.3	52.5	49.5	13	71.5	74
M/51.5	54.8	38.2	54.5	51.5	14.5	72.5	73.5
L/53.5	56.8	38.6	55.5	53.5	16.5	73	73.5
XL/56.5	58.8	39.5	57.5	56.5	18.5	73	73

CINELLI Pressure ADR Road

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS/45	51.2	37.2	51.9	45	11.2	71	74
S/48	52.4	38.2	53.7	48	12.3	71.5	73.5
M/51	54	38.9	55.5	51	13.8	71.8	73
L/54	56	39.5	57.2	54	15.8	72	72.5
XL/57	58.3	40.3	59	57	18	72.7	72

CINELLI Pressure 2 Road

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS/46	51.2	36.6	51.8	46	11.9	71	73.5
S/49	52.8	37.4	53	49	13.4	71.5	73.5
M/52	53.9	38.5	54.5	52	14.4	72	73.5
L/55	56	39.4	56	55	16.4	72.5	73.5
XL/58	58.1	40.3	57.5	58	18.4	73	73.5

CINELLI Aeroscoop Road

Source：cinelli-milano.com Collected 2026-09-29

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS/46	51.1	36.6	51.8	46	11.4	71	73.5
S/49	52.7	37.5	53	49	12.9	71.5	73.5
M/52	53.9	38.5	54.5	52	14	72	73.5
L/54	56.2	39.4	56	54	16.2	72.5	73.5
XL/56	58.3	40.2	57.5	56	18.2	73	73.5

DE ROSA Anima Road

Source：derosa.it Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
46	—	—	53	46	12.2	—	75
48	—	—	54	48	13.7	—	74.25
49	—	—	54.5	49	14.6	—	74
50	—	—	55	50	15.4	—	73.5
51	—	—	56	51	16.5	—	73
52	—	—	56.5	52	17.3	—	73

DE ROSA Idol Road

Source：derosa.it Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
433	50.83	37	51.7	43.3	10.66	71.3	74.2
458	51.61	37.83	52.9	45.8	11.46	71.6	73.9
483	53.71	38.42	54.3	48.3	13	72.6	73.6
507	55.68	38.98	56	50.7	14.9	73	73
534	57.71	39.56	57.2	53.4	17	73.1	73
561	59.69	40.24	58.8	56.1	19	73.3	72.7

DE ROSA 838 Road

Source：derosa.it Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
46	50.5	36.4	50.5	—	10.6	—	74.5
50	52.7	37.7	52.8	—	12.5	—	74.1
52	54.5	38.9	54.5	—	14	—	73.7
54	56.5	39.6	56.5	—	16	—	73.3
56	58.5	40.3	58.3	—	17.8	—	72.9

DE ROSA 70 Road

Source：derosa.it Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
44.5	51.3	37.6	51.8	—	11	—	74.5
46.5	52.4	38	52.9	—	12	—	74.1
48	53.7	38.5	54	—	13.1	—	73.9
50.5	54.8	39.3	55.1	—	14.1	—	73.9
52.5	56.1	39.9	56.3	—	15.4	—	73.7
54.5	57.4	40.6	57.6	—	16.7	—	73.5

TIME ADHX 45 Gravel

Source：global.timebicycles.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	53.2	36.4	51.9	45.5	12.3	70.3	73.5
S	54.3	37.1	53.7	48	13.1	71.3	72.8
M	56.4	38.1	55.3	50	14.9	72.3	72.8
L	58.3	39	56.8	53	16.9	72.3	72.8
XL	60.3	39.5	57.8	55	18.8	72.8	72.8

TIME ADHX Gravel

Source：global.timebicycles.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	53	36.6	53	45.5	12.3	70.5	73.7
S	54.3	37.3	54	48	13.1	71.5	73
M	56.2	38.3	55.5	50	14.9	72.5	73
L	58.1	39.2	57	53	16.9	72.5	73
XL	60.1	39.7	58	55	18.8	73	73

TIME Alpe d'Huez Road

Source：global.timebicycles.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	51.4	37.2	51.3	45	12.2	71	74.7
S	53.8	37.7	53.1	47	14.2	72.5	74
M	56.2	38.3	55.5	51	16.6	73	73
L	58.2	39.2	57	54	18.6	73	73
XL	60.1	39.7	58	56.5	20.4	73.5	73

TIME Scylon Road

Source：global.timebicycles.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	51.5	37.2	52.9	47	12	71.5	73
XS	53.2	37.7	54	48.5	13.8	71.5	73
S	54.9	38.2	54.9	50.5	15.4	71.5	73
M	56.7	38.9	56	52.5	16.7	72	73
L	58.4	39.2	57.4	54.5	18.5	73	73
XL	60.1	39.7	58.4	56.5	20.3	73	73

BASSO Palta III Gravel

Source：bassobikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	53	35.4	49.6	41	11.2	68	75
S	55	36.2	51.5	45	12.7	69	74.5
M	57	37.3	54	49	14.6	70	73.7
L	59	38.5	56	52	16.3	71	73.5
XL	60.5	39.8	57.8	55	17.9	71	73.5
XXL	62	40.5	59.5	58	19.3	71	73

BASSO Palta Gravel

Source：bassobikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	52.8	35.4	49.5	41	11	68	75
S	54.2	37	52	45	12.5	69.5	74.5
M	56.3	37.3	54	51	14.5	70	73.5
L	58.1	38.9	56	54	16	71	73.5
XL	60	40.2	58.5	57	18	71	73

BASSO Venta R Road

Source：bassobikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
42	53.4	37.19	50.5	42	12.4	71.8	76.5
48	53.4	37.2	51.5	48	12.4	71.8	75
51	55.85	37.54	52.5	51	14.9	72	75
53	57.1	38.13	54.5	53	16.1	72.3	74
56	57.95	38.31	56	56	17.9	73.5	73.5
58	62.05	38.53	57.5	58	20.3	73.5	73

BASSO Astra Road

Source：bassobikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
45	53.89	37.11	50.5	45	12.5	71.8	76
48	53.89	37.11	51.5	48	12.5	71.8	75
51	56.34	37.45	52.5	51	15	72	75
53	57.59	38.04	54.5	53	16.2	72.3	74
56	60.24	38.21	56	56	18	73.5	73.5
58	62.54	38.44	57.5	58	20.4	73.5	73

BASSO Diamante Road

Source：bassobikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
45	52.17	37.49	50.5	45	10.1	71.3	76
48	52.18	37.52	51.5	48	10.1	71.4	75
51	54.62	37.86	52.5	51	12.6	71.6	75
53	55.88	38.48	54.5	53	13.8	71.9	74
56	58.43	38.69	56	56	15.5	73.1	73.5
58	60.8	38.9	57.5	58	18	73.1	73

FACTOR ELARA Gravel

Source：factorbikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
49	51.5	38.2	—	—	—	71.3	75
52	53.5	39	—	—	—	71.3	74.5
54	55.5	39.9	—	—	—	72.2	74.5
56	58	40.7	—	—	—	72.3	74.5
58	60.5	41.7	—	—	—	72.3	74
61	62.5	42.7	—	—	—	72.5	74

FACTOR HANZŌ Track Road

Source：factorbikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
S/M	—	—	—	51.7	—	72.7	76
M/L	—	—	—	53	—	72.7	76

FACTOR MONZA Road

Source：factorbikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
45	50.2	36	—	42.8	—	71.1	75.5
49	51.4	36.7	—	45	—	71.7	74.5
52	53.5	37.3	—	47.4	—	72.5	74
54	55.2	38.1	—	49.8	—	72.5	74
56	57.4	38.9	—	51.9	—	73.3	73.5
58	59.7	40.1	—	54.1	—	73.3	73.5

FACTOR OSTRO VAM Road

Source：factorbikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
45	50.2	36	—	43.2	—	71.1	75.5
49	50.3	37	—	45.4	—	71.1	74.5
52	52.3	37.6	—	48.3	—	72.5	74
54	54.2	38.4	—	50.2	—	72.5	74
56	56.5	39.2	—	52.4	—	73.3	73.5
58	58.7	40.1	—	53.1	—	73.3	73.5

FACTOR ONE Road

Source：factorbikes.com Collected 2026-09-28

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
47	50.3	39	—	—	—	72.5	76.5
52	52.3	39.6	—	—	—	73.3	76
54	54.2	40.4	—	—	—	73.3	76
56	56.5	41.2	—	—	—	73.3	75.5
58	58.7	42.1	—	—	—	73.3	75.5

BIANCHI Arcadex Gravel

Source：www.bianchi.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	54.4	37.6	52.7	41	9	70.5	74.5
SM	56.3	38.3	54.5	44.8	11	70.5	74
MD	58.4	39.1	56.4	48.5	13	71	73.5
LG	61	40.2	58.3	51.5	15.5	71.5	73.5
XL	63.8	41	60.5	55	18.5	71.5	73

BIANCHI Sprint Road

Source：www.bianchi.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
470	49.7	37.7	51.5	42	10.5	70.5	74.5
500	50.5	38.3	52.5	45	11	71.5	74.5
530	52.9	38.4	53.5	48	12.5	72	74
550	54.5	38.8	55	50	14	73	73.5
570	56.1	39.3	56	52	15.5	73	73.5
590	58	39.6	57.5	54	17.5	73	73

BIANCHI Infinito Road

Source：www.bianchi.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
470	53.1	37	51.2	42	11.5	70.5	75
500	55.2	37.2	52.5	45	13.5	71	74.5
530	56.6	37.3	53.5	48	15	71	74
550	58.4	37.7	55	50	16.5	72	73.5
570	60	38.2	56	52	18	72.5	73.5
590	61.45	38.4	57.2	54	19.5	72.5	73

BIANCHI Oltre Road

Source：www.bianchi.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
470	47	38.5	51.5	45	8.3	70.5	74.5
500	47.8	39.2	52.5	48	8.8	71.5	74.5
530	50.4	39.3	53.6	51	10.3	72	74
550	52	39.7	55	53	11.8	72.5	73.5
570	53.6	40.2	56	55	13.3	73	73.5
590	55.5	40.6	57.5	57	15.3	73	73

BMC Kaius 01 ONE Gravel

Source：bmc-switzerland.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
47	51	39	54.6	42.8	8.5	71	73
51	53	39.7	55.9	45.2	10.6	71	73
54	55	40.1	56.9	46.8	12.3	72	73
56	57	40.5	57.9	49.3	14.4	72	73
58	59.5	41	59.2	51.3	17	72	73
61	62	41.4	60.4	53.3	19.6	72	73

BMC Teammachine R 01 ONE Road

Source：bmc-switzerland.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
47	50.4	36.8	51.5	41.8	10.8	71.5	74
51	52.8	37.8	53.2	46.3	13.3	71.5	74
54	54.8	38.7	55.2	49.9	14.9	72.3	73.5
56	56.3	39.3	56.2	51.9	16.5	72.3	73.5
58	58.2	40.2	58.2	54.1	18.4	72.3	73
61	60.8	40.9	59.8	57	21.1	72.3	73

BMC Teammachine SLR 01 ONE Road

Source：bmc-switzerland.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
47	50.6	36.7	51.5	42.2	10.8	71.5	74
51	53	37.7	53.2	46.4	13.3	71.5	74
54	55	38.6	55.2	49.1	14.9	72.3	73.5
56	56.5	39.2	56.2	50.9	16.5	72.3	73.5
58	58.4	40.1	58.2	53	18.4	72.3	73
61	60.8	40.9	59.8	55.5	21.1	72.3	73

BMC Roadmachine 01 ONE Road

Source：bmc-switzerland.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
47	52.5	37	52	41.4	11.2	71.4	74.2
51	55	37.9	53.7	46.1	13.8	71.4	74.2
54	57	38.3	54.6	48.8	15.4	72.2	74.2
56	59.5	38.8	55.9	50.8	18.1	72.2	74.2
58	62	39.3	57.1	52.9	20.7	72.2	74.2
61	64.5	39.8	58.1	55	23.3	72.2	74.2

PASSONI Cicloprato RTR Gravel

Source：passoni.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
48	51.8	37.4	51.4	45.5	10.5	71.3	75
50	53.1	37.7	52	47.3	11.8	71.5	75
52	54.9	38.1	53.4	49.9	13.3	72.5	74.5
54	56.3	38.3	54.5	51.8	14.8	73	74
57	58.6	39.5	56.9	54.5	17	73.5	73.5
60	61.4	40.5	58.7	57.7	19.8	74	73.5

PASSONI Animus AT-01 Road

Source：passoni.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
48	54.7	36.3	51.9	53	13.4	69	74.5
50	55.2	37	52.7	53.5	13.7	69.5	74.5
52	55.9	37.5	53.8	54.2	14.2	70	74
54	57.8	38	54.8	56.4	16	70.5	74
56	59.4	38.7	55.9	58.1	17.3	71.5	74
58	61.8	39.6	57.5	60.5	19.8	71.5	74

PASSONI Prima Disco Road

Source：passoni.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
48	51.9	36.1	50	49.5	13	69	75.5
50	52.6	36.8	51.3	50.3	13.4	70	75
52	54	37.5	52.7	52	14.5	71	74.5
54	55.9	38.3	54.5	54.1	16.4	71.5	74
56	58.4	38.9	56	56.7	18.8	72	73.8
58	60.8	39.4	58	59.5	21.1	72.5	73

MOULTON THE HALL SE Folding

Source：www.moultonbicycles.co.uk Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
One Size	52.5	37.7	—	45	25.4	—	—

MOULTON FLYTE Folding

Source：www.moultonbicycles.co.uk Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
One Size	49.6	39.9	—	45	23	—	—

MOULTON XTB Folding

Source：www.moultonbicycles.co.uk Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
One Size	52.5	—	—	45	25.4	—	—

MOULTON SST Folding

Source：www.moultonbicycles.co.uk Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
One Size	52.5	—	—	45	25.4	—	—

MOULTON Jubilee Folding

Source：www.moultonbicycles.co.uk Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
One Size	46.5	—	—	38	21.8	—	—

MOULTON TSR Folding

Source：www.moultonbicycles.co.uk Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
One Size	52.5	—	—	45	25.4	—	—

LOOK G85 Cezal Gravel

Source：www.lookcycle.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	54.7	36	51.16	47	8.25	69.5	74
S	56.6	37	52.71	49	10.28	69.5	74
M	59	38	54.4	51	12.88	70	74
L	61.4	39	56.09	53	15.44	70	74
XL	63.8	40	57.78	55	18.02	70.5	74

LOOK 785 Huez RS Road

Source：www.lookcycle.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	51.92	36.53	50.93	48	9.44	71.5	74.5
S	54.33	37.53	52.6	50.4	11.96	71.5	74.5
M	56.73	38.56	54.3	53	14.07	73	74.5
L	59.13	39.55	55.96	55.4	16.58	73	74.5
XL	61.53	40.56	57.63	57.9	19.35	73	74.5

LOOK 795 Blade RS 3 Road

Source：www.lookcycle.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XXS	48.62	36.13	49.16	46.3	7.79	70.7	75
XS	50.12	37.13	51.02	47.96	9.04	71.8	74.5
S	52.52	38.13	52.69	50.44	11.56	71.8	74.5
M	54.92	39.12	54.35	52.99	13.67	73	74.5
L	57.32	40.12	56.01	55.48	16.18	73	74.5
XL	59.72	41.12	57.68	57.97	18.95	73	74.5

CANNONDALE Topstone Carbon Gravel

Source：www.cannondale.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
47	55.4	36.4	53.2	41	9.7	69.9	73.1
51	56.1	37.3	54.3	44.6	10.1	70.7	73.1
54	57.9	37.8	55.4	48.2	12.3	70.7	73.1
56	59.7	38.3	56.4	51.8	14.2	70.7	73.1
58	61.5	38.9	57.6	55.4	16.4	70.7	73.1
61	64.6	39.7	59.3	59	19.6	70.7	73.1

CANNONDALE Synapse Alloy Road

Source：www.cannondale.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
44	51	36.5	52.1	40	9.6	70.2	73
48	53	37.1	53.3	42.2	11.5	70.8	73
51	55	37.6	54.4	44.3	14	71	73
54	57	38.1	55.5	48	16	71.9	73
56	59	38.7	56.7	52	18.1	72	73
58	61	39.3	58	55	20.5	72	73

CANNONDALE SuperSix EVO Road

Source：www.cannondale.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
48	50.8	37.6	52.2	42.9	10.1	71.2	74
50	52	37.9	52.9	44.8	11.4	71.2	74
52	53.2	38.3	53.6	46.7	13	71.2	74
54	54.5	38.7	54.4	49	14.3	71.2	74
56	56.5	39.3	56	51	15.4	73	73.5
58	58.5	39.8	57.7	53.2	17.8	73	73

CERVÉLO Áspero-5 Gravel

Source：www.cervelo.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
48	50	36.9	51.6	—	7.5	70.6	74.1
51	52.5	37.7	53.1	—	9.9	71.1	73.6
54	55	38.6	55.2	—	12.2	71.6	73.1
56	57.5	39.5	57.4	—	14.8	71.6	72.6
58	60	40.4	59.1	—	17.7	71.6	72.6
61	62.5	41.3	60.7	—	20.3	71.6	72.6

CERVÉLO Caledonia-5 Road

Source：www.cervelo.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
48	50.5	36	50.2	—	8.95	70.5	74.5
51	53	36.9	52.2	—	11.03	71.5	74
54	55.5	37.8	54.3	—	13.63	72	73.5
56	58	38.7	56.5	—	16.26	72	73
58	60.5	39.6	58.1	—	19.15	72	73
61	63	40.5	59.8	—	21.78	72	73

CERVÉLO R5 Road

Source：www.cervelo.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
48	49.61	36.87	50.6	—	8.96	71	74.5
51	52.02	37.65	52.6	—	10.93	72	74
54	54.46	38.33	54.5	—	13.2	73	73.5
56	56.75	39.11	56.5	—	15.6	73	73
58	59.07	40.03	58.1	—	18.28	73	73
61	61.07	40.83	59.5	—	20.37	73	73

CERVÉLO S5 Road

Source：www.cervelo.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
48	49.6	36.7	52	—	6.4	71	73
51	51.9	37.6	53.5	—	8.2	72	73
54	54.2	38.4	55	—	10.4	73	73
56	56.5	39.2	56.5	—	12.5	73.5	73
58	58.8	40.1	58.1	—	15.2	73.5	73
61	60.8	40.9	59.5	—	17.3	73.5	73

BROMPTON G Line Folding

Source：be.brompton.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
Small	—	47.7	—	—	—	—	—
Medium	—	48.3	—	—	—	—	—
Large	—	50.4	—	—	—	—	—

CANYON Aeroad CF SLX 7 Di2 Road

Source：www.canyon.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
2XS	49.8	37.2	52	44.1	8.8	70	73.5
XS	52	37.8	53.2	47.1	10.7	71.2	73.5
S	53.9	39	54.9	50.1	12.1	72.8	73.5
M	56	39.3	55.9	53.1	14.2	73.25	73.5
L	58	40.1	57.2	56.1	16.2	73.3	73.5
XL	60.6	41.9	59.8	59.1	18.8	73.5	73.5

CANYON Endurace CF 7 Road

Source：www.canyon.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
2XS	52.5	38.2	53.7	43.2	10.4	70.3	73.5
XS	54.5	38.6	54.7	46.2	12.3	71	73.5
S	56.3	39	55.7	49.2	13.9	71.8	73.5
M	58.4	39.2	56.5	52.2	15.8	72.5	73.5
L	60.5	40.1	58	55.2	18	72.5	73.5
XL	62.9	40.9	59.6	58.2	20.4	72.8	73.5

CANYON Ultimate CF 7 Road

Source：www.canyon.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
2XS	49.8	37.2	51.6	42	11.5	70	73.9
XS	52	37.8	52.9	45	10.7	71.2	73.9
S	53.9	39	54.6	48	12.1	72.8	73.5
M	56	39.3	55.5	51	14.2	73.25	73.5
L	58	40.1	56.9	54	16.2	73.3	73.5
XL	60.6	41.9	59.4	57	18.8	73.5	73.5

XDS X-LAB GT8 2026 Gravel

Source：www.xidesheng.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	51.9	37	50.6	43.5	8	70	76
S	54	37.9	52.5	44.7	10	70	75
M	56.5	38.4	54.7	47.1	12	71	74
L	58.4	39.2	56.6	49.1	14	71	74
XL	60.7	39.9	58.5	53.2	16.5	71	73
XXL	63.1	40.8	60.5	57.7	19	71	73

XDS AD7 2026 Road

Source：www.xidesheng.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	51	36.8	50.4	47	10.5	70.7	75.1
S	52.5	37.6	52.3	49.5	11.8	71.5	74.5
M	54	38.7	54	52	13	72.5	74
L	55.8	39.5	55.9	54	14.8	73	73.5
XL	58	40.5	57.9	56.5	17.1	73.2	73.2

XDS X-LAB AD8 Road

Source：www.xidesheng.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	50.5	37.1	50.4	47	10.5	70.9	75.1
S	52	37.9	52.3	50.3	11.8	71.5	74.5
M	53.4	38.7	54	51.5	13	72.5	74
L	55.3	39.5	55.9	54.3	14.8	73	73.5
XL	58.7	40.5	57.9	56.8	17.1	73.2	73.2

XDS X-LAB AD9 Road

Source：www.xidesheng.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	50.5	37.1	50.4	47	10.5	70.9	75.1
S	52	37.9	52.3	50.3	11.8	71.5	74.5
M	53.4	38.7	54	51.5	13	72.5	74
L	55.3	39.5	55.9	54.3	14.8	73	73.5
XL	58.7	40.5	57.9	56.8	17.1	73.2	73.2

GIANT Revolt Advanced SL 0 Gravel

Source：www.giant.com.cn Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	52.5	38.9	53	43	9	70.5	75
S	53.6	39.1	54	45	10	71	74.5
M	55.7	39.5	55	47	12	71.5	74.5
ML	57.3	40.1	56.5	49	13.5	72	74
L	59.2	41	58	51	15.5	72	74

GIANT Propel Advanced SL 0-DA Road

Source：www.giant.com.cn Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	51.5	37.7	52	68	11.5	71.5	74.5
S	53	38.3	53.5	71	12.7	72.5	74
M	54.6	38.8	55	74	14.5	73	73.5
ML	56.5	39.2	56.5	77	16.5	73	73
L	58.2	40.2	58	80	18.5	73	73
XL	59.6	41.2	60	83	20	73	72.5

GIANT TCR Advanced SL 0-DA Road

Source：www.giant.com.cn Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	51.7	37.6	52	68	12	71	74.5
S	52.8	38.3	53.5	71	13	72.25	74
M	54.5	38.8	55	74	14.5	73	73.5
ML	56.2	39.3	56.5	77	16.5	73	73
L	58.1	40.2	58	80	18.5	73	73

PINARELLO Grevil F Gravel

Source：pinarello.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
470	55.32	36.84	53	47	11.5	70.25	74.5
500	56.83	37.61	54.5	50	13	70.5	74
530	58.32	38.37	55.8	53	15	70.75	73.75
550	59.84	39.04	57	55	16	71.75	73.5
575	61.36	39.82	58.7	57.5	17.5	72	73
600	63.37	40.69	60.7	60	19.5	72.25	72.5

PINARELLO Pinarello F Road

Source：pinarello.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
465	51.73	36.54	51.5	46.5	10.9	70.5	74.4
500	52.52	37.22	52.5	50	11.4	71.4	74
515	53.21	37.82	53.5	51.5	11.9	72	73.7
530	54.24	38.56	54.5	53	12.8	72.5	73.7
545	55.77	38.83	55.5	54.5	14.3	72.8	73.4
560	57.01	39.08	56.5	56	15.45	73.2	73

PINARELLO Dogma F Road

Source：pinarello.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
500	52.52	37.22	52.5	50	11.4	71.4	74
515	53.21	37.82	53.5	51.5	11.9	72	73.7
530	54.24	38.33	54.5	53	12.8	72.5	73.7
540	55.1	38.53	55	54	13.6	72.8	73.4
550	56.15	38.92	55.7	55	14.7	72.8	73.4
560	57.01	39.08	56.5	56	15.45	73.2	73

COLNAGO Y1Rs Road

Source：139650070.fs1.hubspotusercontent-eu1.net Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	49.5	36.8	—	—	8.85	70.8	75
S	52	37.7	—	—	10.85	71.9	74.5
M	54	38.6	—	—	12.65	73	74
L	56.5	39.5	—	—	15.05	73.5	73.7
XL	59	40.4	—	—	17.65	73.5	73

COLNAGO V4Rs Road

Source：139650070.fs1.hubspotusercontent-eu1.net Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
420	51	37	50.4	42	10.3	70.6	75.5
455	52.2	37.5	51.7	45.5	11.4	71	75
485	53.9	38.3	53.5	48.5	13	71.5	74.5
510	55.7	38.8	55	51	14.8	71.8	74
530	57.5	39.5	56.7	53	16.4	72.5	73.5
550	59.3	40.3	58.6	55	18.1	72.9	73

COLNAGO G4-X Gravel

Source：www.colnago.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
450	53.5	37.1	52.4	45	—	71	74
480	55.4	38	53.9	48	—	71.5	74
520	57.3	39	56	52	—	71.5	73.5
540	59.1	40	58.1	54	—	71.5	73
570	60	41	59.6	57	—	71.5	73

SPECIALIZED Crux 5 Gravel

Best race gravel bike (2026)

Source：www.specialized.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
49	53	37.5	51.2	44.5	9.5	70.5	75.5
52	54.7	38.2	53.4	45.6	11	70.75	74.5
54	56	38.8	54.3	47.3	12.5	71	74.5
56	57.8	40	56.6	49.7	14.2	71.5	74
58	59.8	41.2	58.3	51.5	16.3	71.5	74
61	62.1	42.5	60.3	54.5	18.8	71.5	74

SPECIALIZED Diverge 4 Gravel

Source：www.specialized.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
49	56.3	36.5	52.1	40	9	70	74.5
52	57.8	37.4	53.7	43	10.4	70.5	74
54	59.2	38.7	55.6	47	11.6	71	74
56	61	40	57.5	50	13.5	71	74
58	63.4	41.2	59.3	53	16.1	71	74
61	65.9	42.5	61.3	56	18.7	71	74

SPECIALIZED Allez Road

Source：www.specialized.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
44	51.9	35.6	49.3	43	11	69.5	75.25
49	53.6	35.9	50	46	12.5	70.5	75.25
52	55.2	36.4	53	49	14	71	73.25
54	56.9	37	54.1	51	15.5	72	73.25
56	59	37.8	55.6	53	17.5	72.5	73.25
58	61	38.6	56.9	55	19.5	73	73.25

SPECIALIZED Tarmac SL8 Road

Source：www.specialized.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
44	50.1	36.6	49.6	43.3	9.9	70.5	75.5
49	51.4	37.5	50.9	44.5	10.9	71.75	75.5
52	52.7	38	53.1	45.6	12	72.5	74
54	54.4	38.4	54.1	47.3	13.7	73	74
56	56.5	39.5	56.3	49.4	15.7	73.5	73.5
58	59.1	40.2	57.7	51.5	18.4	73.5	73.5

TREK Émonda ALR Road

Source：www.trekbikes.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
50	52.1	37.8	52.1	45.3	11.1	72.1	74.6
52	53.3	38.3	53.4	48.3	12.1	72.8	74.2
54	54.1	38.6	54.3	49.6	13.1	73	73.7
56	56.3	39.1	55.9	52.5	15.1	73.5	73.3
58	58.1	39.6	57.4	55.3	17.1	73.8	73
60	60.1	39.9	58.6	57.3	19.1	73.9	72.8

TREK Checkpoint SL Gravel

Source：www.trekbikes.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	53.5	38	53.6	44.5	8.6	71	74
S	55.6	38.6	54.7	48	10.6	71.4	74
M	57.9	39.1	56.6	50.5	13	71.6	73.3
ML	60.1	39.7	57.8	53	15.1	72	73.3
L	62	40.2	58.9	55	17.1	72.1	73.3
XL	64	40.8	60.1	57.5	19.1	72.4	73.3

TREK Domane SLR Road

Source：www.trekbikes.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	52.4	36.8	52	44.4	10.6	71.3	73.5
S	55.5	37.1	53	47.6	13.9	71.1	73.7
M	57.5	37.4	54.1	50	15.9	71.2	73.5
ML	59.6	37.7	55.3	53.3	17	71.9	73.3
L	61.8	38	56.2	55.3	19.2	72	73.3
XL	64.8	38.4	57.5	59.3	22.6	72.1	73.3

TREK Madone SLR Road

Source：www.trekbikes.com Collected 2026-09-27

Size	Stack	Reach	Top tube	Seat tube	Head tube	Head angle	Seat angle
XS	50.7	37	51.7	40.4	10	71.6	73.8
S	53	37.8	53.2	44	12.1	72.2	73.8
M	54.6	38.4	54.5	47.6	13.6	72.9	73.6
ML	56.2	38.9	55.7	51.2	15	73.5	73.4
L	58.2	39.4	56.8	54.8	17.2	73.8	73.4
XL	61	40.2	58.4	60.9	20.1	73.9	73.4

Wheel Library

Wheel specs collected from official sites — weight in g, dimensions in mm, price as listed by the brand; aero figures are brand-published claims. Newest first.

RESERVE 30|GR Aluminum Gravel

$699 Set 1,645 g Disc Alloy Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	30	30
Internal width	27	27
External width	30.4	30.4
Spokes	24	24

Hub：DT 350

RESERVE 48|53 GR Gravel

$1,799 Set 1,528 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	48	53
Internal width	30	30
External width	44	44
Spokes	24	24

Hub：DT 350

RESERVE 40|44 GR Gravel

$1,799 Set 1,454 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	40	44
Internal width	27.4	27
External width	36	34.4
Spokes	24	24

Hub：DT 350

RESERVE Infinity Disc Aero

$4,898 Set 2,180 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	—	—
Internal width	25.2	24.5
External width	33	32
Spokes	—	—

Hub：bonded-in disc hub

RESERVE 77|88 Turbulent Aero Aero

$2,399 Set 1,833 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	77	88
Internal width	25	24
External width	31	30
Spokes	24	24

Hub：DT 240

RESERVE 57|64 SL Turbulent Aero Aero

$3,499 Set 1,470 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	57	64
Internal width	25.4	24.4
External width	34.3	32.5
Spokes	24	24

Spokes：Tune carbon ｜Hub：Tune carbon spoke

RESERVE 57|64 Turbulent Aero Aero

$1,799 Set 1,634 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	57	64
Internal width	25.4	24.4
External width	34.3	32.5
Spokes	24	24

Hub：DT 350

RESERVE 42|49 SL Turbulent Aero Aero

$3,499 Set 1,297 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	42	49
Internal width	25.4	24.8
External width	34.4	32.1
Spokes	24	24

Spokes：Tune carbon ｜Hub：Tune carbon spoke

RESERVE 42|49 Turbulent Aero Aero

$1,799 Set 1,429 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	42	49
Internal width	25.4	24.8
External width	34.4	32.1
Spokes	24	24

Hub：DT 350

RESERVE 34|37 SL Turbulent Aero All-round

$3,499 Set 1,140 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	34	37
Internal width	22.8	22
External width	29.8	29.5
Spokes	24	24

Spokes：Tune carbon ｜Hub：Tune carbon spoke

RESERVE 34|37 Turbulent Aero All-round

上代→本代：每只轮圈轻 30g，风洞“快 4g”（官方表述）

$1,799 Set 1,280 g Disc Carbon Tubeless

Source：reservewheels.com Collected 2026-09-30

Spec	Front	Rear
Rim depth	34	37
Internal width	22.8	22
External width	29.8	29.5
Spokes	24	24

Hub：DT 350

Open API · Coming Soon

We are packaging this data into a self-serve, read-only API for developers working on bike-model matching, body profiling and regional trend analysis.

GET /api/public/statsGlobal / per-region record counts and coverage
GET /api/public/distributionHeight, frame size and other distribution histograms
GET /api/public/ratiosEthnic-group body ratios and averages

Sample response

Apply for access: Andata